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How to Use strace to Debug Applications on Linux: Tracing System Calls and Finding Root Causes Effectively

By admin April 28, 2026

strace lets you trace every system call a process makes on Linux — from file opens and network connections to lock waits — without needing source code or recompiling. This guide covers practical strace usage for debugging permission errors, missing files, hanging services, and I/O bottlenecks.

Development

Goodbye Node.js? A Guide to Speeding Up JavaScript Projects 10x with Bun.js

By admin April 26, 2026

Is it time to say goodbye to Node.js? A detailed guide on using Bun.js to significantly speed up JavaScript/TypeScript development. Learn how to install, manage packages, and use the ultra-fast test runner.

Linux

OOM Killer: Why Linux Kills Your MySQL and How to Protect It

By admin April 24, 2026

When a Linux application shuts down unexpectedly, the OOM Killer is often to blame. Learn how to read dmesg logs, understand the oom_score metric, and protect MySQL and Redis from being terminated by the OS.

Python

Celery & Redis: Background Task Solutions to Speed Up Python Applications

By admin April 22, 2026

Significantly speed up Python applications by offloading heavy tasks to Celery and Redis. A detailed guide from setup to professional worker management.

Linux

Boosting Linux Server I/O Performance: noatime and tuned profile Tips

By admin April 22, 2026

A quick guide to optimizing Linux I/O performance by configuring noatime and using tuned profiles to reduce system latency.

Database

PostgreSQL Indexing: Don’t Just Use B-Tree for Millions of Rows

By admin April 19, 2026

Stop overusing B-Tree for everything. This article shares practical experience on using GIN for JSONB, BRIN for Big Data, and how to create indexes without locking your production database.

Virtualization

Optimizing KVM/Proxmox Resources: Stop VMs from Draining Your Hardware

By admin April 9, 2026

Managing KVM/Proxmox resources effectively is easy when you know how. Guide on optimizing CPU Type, configuring VirtIO SCSI, and RAM Ballooning tips to prevent bottlenecks.

Database

Database Schema Design: Don’t Let Technical Debt Sink Your System

By admin April 5, 2026

Learn how to design standard database schemas from 1NF to 3NF, the secrets of applying Denormalization to boost performance, and pitfalls to avoid.

Python

Python Profiling: Pro Tips for Troubleshooting Slow Code with cProfile and Py-Spy

By admin April 3, 2026

Stop guessing why your Python code is slow. This guide shows you how to use cProfile and Py-Spy to pinpoint bottlenecks and optimize performance based on real-world experience.

Docker

Monitor Docker Container Resources with `docker stats` and cAdvisor: Identify CPU, RAM Hogs

By admin March 16, 2026

Optimizing Docker application performance is an essential skill. This article provides detailed guidance on using `docker stats` and cAdvisor to monitor container CPU and RAM, helping you effectively identify and resolve performance issues.